Emotion and social factors in communication

Various new issues would arise if one wishes to create robots worth having as partners in the human society. Since these robots have to be able to communicate with humans more or less in equal standing, they need to understand human emotional expressions to some degree, as well as to produce some of them as if they owned their own emotions. This is because emotional expressions are indispensable ingredients of human daily communication. In this paper analyses of many issues concerning the role of communication in the human society are attempted in a rather deep level. A special emphasis will be placed upon the versatile structure of the society, created by using competitiveness of its members for the purpose of acquiring more adaptability of the society as a whole against mutable external conditions. It will also be shown that this versatile aspect of the society reflects heavily upon the daily communication we are engaged in